class RemoveUselessColumnsFromWorks < ActiveRecord::Migration
  def self.up
  	remove_column  :works, :abstract_file_name
    remove_column  :works, :abstract_content_type
    remove_column  :works, :abstract_file_size
    remove_column  :works, :abstract_updated_at
  end

  def self.down
  	puts "There's no going back, reinstall paperclip to get these columns back."
  end
end
